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Message-Id: <20210312163632.8861-8-digetx@gmail.com>
Date: Fri, 12 Mar 2021 19:36:32 +0300
From: Dmitry Osipenko <digetx@...il.com>
To: Thierry Reding <thierry.reding@...il.com>,
Jonathan Hunter <jonathanh@...dia.com>,
Peter De Schrijver <pdeschrijver@...dia.com>,
Prashant Gaikwad <pgaikwad@...dia.com>,
Michael Turquette <mturquette@...libre.com>,
Stephen Boyd <sboyd@...nel.org>,
Rob Herring <robh+dt@...nel.org>
Cc: linux-tegra@...r.kernel.org, linux-clk@...r.kernel.org,
linux-kernel@...r.kernel.org, devicetree@...r.kernel.org
Subject: [PATCH v4 7/7] dt-bindings: clock: tegra: Convert to schema
Convert NVIDIA Tegra clock bindings to schema.
Signed-off-by: Dmitry Osipenko <digetx@...il.com>
---
.../bindings/clock/nvidia,tegra-car.yaml | 118 ++++++++++++++++++
.../bindings/clock/nvidia,tegra114-car.txt | 63 ----------
.../bindings/clock/nvidia,tegra124-car.txt | 107 ----------------
.../bindings/clock/nvidia,tegra20-car.txt | 63 ----------
.../bindings/clock/nvidia,tegra210-car.txt | 56 ---------
.../bindings/clock/nvidia,tegra30-car.txt | 63 ----------
6 files changed, 118 insertions(+), 352 deletions(-)
create mode 100644 Documentation/devicetree/bindings/clock/nvidia,tegra-car.yaml
delete mode 100644 Documentation/devicetree/bindings/clock/nvidia,tegra114-car.txt
delete mode 100644 Documentation/devicetree/bindings/clock/nvidia,tegra124-car.txt
delete mode 100644 Documentation/devicetree/bindings/clock/nvidia,tegra20-car.txt
delete mode 100644 Documentation/devicetree/bindings/clock/nvidia,tegra210-car.txt
delete mode 100644 Documentation/devicetree/bindings/clock/nvidia,tegra30-car.txt
diff --git a/Documentation/devicetree/bindings/clock/nvidia,tegra-car.yaml b/Documentation/devicetree/bindings/clock/nvidia,tegra-car.yaml
new file mode 100644
index 000000000000..4d8d38bb1af2
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/nvidia,tegra-car.yaml
@@ -0,0 +1,118 @@
+# SPDX-License-Identifier: (GPL-2.0+ OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/nvidia,tegra-car.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NVIDIA Tegra Clock and Reset Controller
+
+maintainers:
+ - Jon Hunter <jonathanh@...dia.com>
+ - Thierry Reding <thierry.reding@...il.com>
+
+description: |
+ The Clock and Reset (CAR) is the HW module responsible for muxing and gating
+ Tegra's clocks, and setting their rates. It comprises CLKGEN and RSTGEN units.
+
+ CLKGEN provides the registers to program the PLLs. It controls most of
+ the clock source programming and most of the clock dividers.
+
+ CLKGEN input signals include the external clock for the reference frequency
+ (12 MHz, 26 MHz) and the external clock for the Real Time Clock (32.768 KHz).
+
+ Outputs from CLKGEN are inputs clock of the h/w blocks in the Tegra system.
+
+ RSTGEN provides the registers needed to control resetting of each block in
+ the Tegra system.
+
+properties:
+ compatible:
+ enum:
+ - nvidia,tegra20-car
+ - nvidia,tegra30-car
+ - nvidia,tegra114-car
+ - nvidia,tegra124-car
+ - nvidia,tegra210-car
+
+ reg:
+ maxItems: 1
+
+ '#clock-cells':
+ const: 1
+
+ "#reset-cells":
+ const: 1
+
+ nvidia,external-memory-controller:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description:
+ phandle of the external memory controller node
+
+patternProperties:
+ "^emc-timings-[0-9]+$":
+ type: object
+ properties:
+ nvidia,ram-code:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ value of the RAM_CODE field in the PMC_STRAPPING_OPT_A register that
+ this timing set is used for
+
+ patternProperties:
+ "^timing-[0-9]+$":
+ type: object
+ properties:
+ clock-frequency:
+ description:
+ external memory clock rate in Hz
+ minimum: 1000000
+ maximum: 1000000000
+
+ nvidia,parent-clock-frequency:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ rate of parent clock in Hz
+ minimum: 1000000
+ maximum: 1000000000
+
+ clocks:
+ items:
+ - description: parent clock of EMC
+
+ clock-names:
+ items:
+ - const: emc-parent
+
+ required:
+ - clock-frequency
+ - nvidia,parent-clock-frequency
+ - clocks
+ - clock-names
+
+ additionalProperties: false
+
+required:
+ - compatible
+ - reg
+ - '#clock-cells'
+ - "#reset-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/tegra20-car.h>
+
+ car: clock-controller@...06000 {
+ compatible = "nvidia,tegra20-car";
+ reg = <0x60006000 0x1000>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ };
+
+ usb-controller@...04000 {
+ compatible = "nvidia,tegra20-ehci", "usb-ehci";
+ reg = <0xc5004000 0x4000>;
+ clocks = <&car TEGRA20_CLK_USB2>;
+ resets = <&car TEGRA20_CLK_USB2>;
+ };
diff --git a/Documentation/devicetree/bindings/clock/nvidia,tegra114-car.txt b/Documentation/devicetree/bindings/clock/nvidia,tegra114-car.txt
deleted file mode 100644
index 9acea9d93160..000000000000
--- a/Documentation/devicetree/bindings/clock/nvidia,tegra114-car.txt
+++ /dev/null
@@ -1,63 +0,0 @@
-NVIDIA Tegra114 Clock And Reset Controller
-
-This binding uses the common clock binding:
-Documentation/devicetree/bindings/clock/clock-bindings.txt
-
-The CAR (Clock And Reset) Controller on Tegra is the HW module responsible
-for muxing and gating Tegra's clocks, and setting their rates.
-
-Required properties :
-- compatible : Should be "nvidia,tegra114-car"
-- reg : Should contain CAR registers location and length
-- clocks : Should contain phandle and clock specifiers for two clocks:
- the 32 KHz "32k_in", and the board-specific oscillator "osc".
-- #clock-cells : Should be 1.
- In clock consumers, this cell represents the clock ID exposed by the
- CAR. The assignments may be found in header file
- <dt-bindings/clock/tegra114-car.h>.
-- #reset-cells : Should be 1.
- In clock consumers, this cell represents the bit number in the CAR's
- array of CLK_RST_CONTROLLER_RST_DEVICES_* registers.
-
-Example SoC include file:
-
-/ {
- tegra_car: clock {
- compatible = "nvidia,tegra114-car";
- reg = <0x60006000 0x1000>;
- #clock-cells = <1>;
- #reset-cells = <1>;
- };
-
- usb@...04000 {
- clocks = <&tegra_car TEGRA114_CLK_USB2>;
- };
-};
-
-Example board file:
-
-/ {
- clocks {
- compatible = "simple-bus";
- #address-cells = <1>;
- #size-cells = <0>;
-
- osc: clock@0 {
- compatible = "fixed-clock";
- reg = <0>;
- #clock-cells = <0>;
- clock-frequency = <12000000>;
- };
-
- clk_32k: clock@1 {
- compatible = "fixed-clock";
- reg = <1>;
- #clock-cells = <0>;
- clock-frequency = <32768>;
- };
- };
-
- &tegra_car {
- clocks = <&clk_32k> <&osc>;
- };
-};
diff --git a/Documentation/devicetree/bindings/clock/nvidia,tegra124-car.txt b/Documentation/devicetree/bindings/clock/nvidia,tegra124-car.txt
deleted file mode 100644
index 7f02fb4ca4ad..000000000000
--- a/Documentation/devicetree/bindings/clock/nvidia,tegra124-car.txt
+++ /dev/null
@@ -1,107 +0,0 @@
-NVIDIA Tegra124 and Tegra132 Clock And Reset Controller
-
-This binding uses the common clock binding:
-Documentation/devicetree/bindings/clock/clock-bindings.txt
-
-The CAR (Clock And Reset) Controller on Tegra is the HW module responsible
-for muxing and gating Tegra's clocks, and setting their rates.
-
-Required properties :
-- compatible : Should be "nvidia,tegra124-car" or "nvidia,tegra132-car"
-- reg : Should contain CAR registers location and length
-- clocks : Should contain phandle and clock specifiers for two clocks:
- the 32 KHz "32k_in", and the board-specific oscillator "osc".
-- #clock-cells : Should be 1.
- In clock consumers, this cell represents the clock ID exposed by the
- CAR. The assignments may be found in the header files
- <dt-bindings/clock/tegra124-car-common.h> (which covers IDs common
- to Tegra124 and Tegra132) and <dt-bindings/clock/tegra124-car.h>
- (for Tegra124-specific clocks).
-- #reset-cells : Should be 1.
- In clock consumers, this cell represents the bit number in the CAR's
- array of CLK_RST_CONTROLLER_RST_DEVICES_* registers.
-- nvidia,external-memory-controller : phandle of the EMC driver.
-
-The node should contain a "emc-timings" subnode for each supported RAM type (see
-field RAM_CODE in register PMC_STRAPPING_OPT_A).
-
-Required properties for "emc-timings" nodes :
-- nvidia,ram-code : Should contain the value of RAM_CODE this timing set
- is used for.
-
-Each "emc-timings" node should contain a "timing" subnode for every supported
-EMC clock rate.
-
-Required properties for "timing" nodes :
-- clock-frequency : Should contain the memory clock rate to which this timing
-relates.
-- nvidia,parent-clock-frequency : Should contain the rate at which the current
-parent of the EMC clock should be running at this timing.
-- clocks : Must contain an entry for each entry in clock-names.
- See ../clocks/clock-bindings.txt for details.
-- clock-names : Must include the following entries:
- - emc-parent : the clock that should be the parent of the EMC clock at this
-timing.
-
-Example SoC include file:
-
-/ {
- tegra_car: clock@...06000 {
- compatible = "nvidia,tegra124-car";
- reg = <0x60006000 0x1000>;
- #clock-cells = <1>;
- #reset-cells = <1>;
- nvidia,external-memory-controller = <&emc>;
- };
-
- usb@...04000 {
- clocks = <&tegra_car TEGRA124_CLK_USB2>;
- };
-};
-
-Example board file:
-
-/ {
- clocks {
- compatible = "simple-bus";
- #address-cells = <1>;
- #size-cells = <0>;
-
- osc: clock@0 {
- compatible = "fixed-clock";
- reg = <0>;
- #clock-cells = <0>;
- clock-frequency = <112400000>;
- };
-
- clk_32k: clock@1 {
- compatible = "fixed-clock";
- reg = <1>;
- #clock-cells = <0>;
- clock-frequency = <32768>;
- };
- };
-
- &tegra_car {
- clocks = <&clk_32k> <&osc>;
- };
-
- clock@...06000 {
- emc-timings-3 {
- nvidia,ram-code = <3>;
-
- timing-12750000 {
- clock-frequency = <12750000>;
- nvidia,parent-clock-frequency = <408000000>;
- clocks = <&tegra_car TEGRA124_CLK_PLL_P>;
- clock-names = "emc-parent";
- };
- timing-20400000 {
- clock-frequency = <20400000>;
- nvidia,parent-clock-frequency = <408000000>;
- clocks = <&tegra_car TEGRA124_CLK_PLL_P>;
- clock-names = "emc-parent";
- };
- };
- };
-};
diff --git a/Documentation/devicetree/bindings/clock/nvidia,tegra20-car.txt b/Documentation/devicetree/bindings/clock/nvidia,tegra20-car.txt
deleted file mode 100644
index 6c5901b503d0..000000000000
--- a/Documentation/devicetree/bindings/clock/nvidia,tegra20-car.txt
+++ /dev/null
@@ -1,63 +0,0 @@
-NVIDIA Tegra20 Clock And Reset Controller
-
-This binding uses the common clock binding:
-Documentation/devicetree/bindings/clock/clock-bindings.txt
-
-The CAR (Clock And Reset) Controller on Tegra is the HW module responsible
-for muxing and gating Tegra's clocks, and setting their rates.
-
-Required properties :
-- compatible : Should be "nvidia,tegra20-car"
-- reg : Should contain CAR registers location and length
-- clocks : Should contain phandle and clock specifiers for two clocks:
- the 32 KHz "32k_in", and the board-specific oscillator "osc".
-- #clock-cells : Should be 1.
- In clock consumers, this cell represents the clock ID exposed by the
- CAR. The assignments may be found in header file
- <dt-bindings/clock/tegra20-car.h>.
-- #reset-cells : Should be 1.
- In clock consumers, this cell represents the bit number in the CAR's
- array of CLK_RST_CONTROLLER_RST_DEVICES_* registers.
-
-Example SoC include file:
-
-/ {
- tegra_car: clock {
- compatible = "nvidia,tegra20-car";
- reg = <0x60006000 0x1000>;
- #clock-cells = <1>;
- #reset-cells = <1>;
- };
-
- usb@...04000 {
- clocks = <&tegra_car TEGRA20_CLK_USB2>;
- };
-};
-
-Example board file:
-
-/ {
- clocks {
- compatible = "simple-bus";
- #address-cells = <1>;
- #size-cells = <0>;
-
- osc: clock@0 {
- compatible = "fixed-clock";
- reg = <0>;
- #clock-cells = <0>;
- clock-frequency = <12000000>;
- };
-
- clk_32k: clock@1 {
- compatible = "fixed-clock";
- reg = <1>;
- #clock-cells = <0>;
- clock-frequency = <32768>;
- };
- };
-
- &tegra_car {
- clocks = <&clk_32k> <&osc>;
- };
-};
diff --git a/Documentation/devicetree/bindings/clock/nvidia,tegra210-car.txt b/Documentation/devicetree/bindings/clock/nvidia,tegra210-car.txt
deleted file mode 100644
index 26f237f641b7..000000000000
--- a/Documentation/devicetree/bindings/clock/nvidia,tegra210-car.txt
+++ /dev/null
@@ -1,56 +0,0 @@
-NVIDIA Tegra210 Clock And Reset Controller
-
-This binding uses the common clock binding:
-Documentation/devicetree/bindings/clock/clock-bindings.txt
-
-The CAR (Clock And Reset) Controller on Tegra is the HW module responsible
-for muxing and gating Tegra's clocks, and setting their rates.
-
-Required properties :
-- compatible : Should be "nvidia,tegra210-car"
-- reg : Should contain CAR registers location and length
-- clocks : Should contain phandle and clock specifiers for two clocks:
- the 32 KHz "32k_in".
-- #clock-cells : Should be 1.
- In clock consumers, this cell represents the clock ID exposed by the
- CAR. The assignments may be found in header file
- <dt-bindings/clock/tegra210-car.h>.
-- #reset-cells : Should be 1.
- In clock consumers, this cell represents the bit number in the CAR's
- array of CLK_RST_CONTROLLER_RST_DEVICES_* registers.
-
-Example SoC include file:
-
-/ {
- tegra_car: clock {
- compatible = "nvidia,tegra210-car";
- reg = <0x60006000 0x1000>;
- #clock-cells = <1>;
- #reset-cells = <1>;
- };
-
- usb@...04000 {
- clocks = <&tegra_car TEGRA210_CLK_USB2>;
- };
-};
-
-Example board file:
-
-/ {
- clocks {
- compatible = "simple-bus";
- #address-cells = <1>;
- #size-cells = <0>;
-
- clk_32k: clock@1 {
- compatible = "fixed-clock";
- reg = <1>;
- #clock-cells = <0>;
- clock-frequency = <32768>;
- };
- };
-
- &tegra_car {
- clocks = <&clk_32k>;
- };
-};
diff --git a/Documentation/devicetree/bindings/clock/nvidia,tegra30-car.txt b/Documentation/devicetree/bindings/clock/nvidia,tegra30-car.txt
deleted file mode 100644
index 63618cde12df..000000000000
--- a/Documentation/devicetree/bindings/clock/nvidia,tegra30-car.txt
+++ /dev/null
@@ -1,63 +0,0 @@
-NVIDIA Tegra30 Clock And Reset Controller
-
-This binding uses the common clock binding:
-Documentation/devicetree/bindings/clock/clock-bindings.txt
-
-The CAR (Clock And Reset) Controller on Tegra is the HW module responsible
-for muxing and gating Tegra's clocks, and setting their rates.
-
-Required properties :
-- compatible : Should be "nvidia,tegra30-car"
-- reg : Should contain CAR registers location and length
-- clocks : Should contain phandle and clock specifiers for two clocks:
- the 32 KHz "32k_in", and the board-specific oscillator "osc".
-- #clock-cells : Should be 1.
- In clock consumers, this cell represents the clock ID exposed by the
- CAR. The assignments may be found in header file
- <dt-bindings/clock/tegra30-car.h>.
-- #reset-cells : Should be 1.
- In clock consumers, this cell represents the bit number in the CAR's
- array of CLK_RST_CONTROLLER_RST_DEVICES_* registers.
-
-Example SoC include file:
-
-/ {
- tegra_car: clock {
- compatible = "nvidia,tegra30-car";
- reg = <0x60006000 0x1000>;
- #clock-cells = <1>;
- #reset-cells = <1>;
- };
-
- usb@...04000 {
- clocks = <&tegra_car TEGRA30_CLK_USB2>;
- };
-};
-
-Example board file:
-
-/ {
- clocks {
- compatible = "simple-bus";
- #address-cells = <1>;
- #size-cells = <0>;
-
- osc: clock@0 {
- compatible = "fixed-clock";
- reg = <0>;
- #clock-cells = <0>;
- clock-frequency = <12000000>;
- };
-
- clk_32k: clock@1 {
- compatible = "fixed-clock";
- reg = <1>;
- #clock-cells = <0>;
- clock-frequency = <32768>;
- };
- };
-
- &tegra_car {
- clocks = <&clk_32k> <&osc>;
- };
-};
--
2.29.2
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